package com.huadao.cart_ccs.common.gsonConverter;

import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.reflect.TypeToken;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Converter;
import retrofit2.Retrofit;

public class RockGsonConverterFactory extends Converter.Factory {
    private final Gson gson;

    private RockGsonConverterFactory(Gson gson){
        if(null==gson){
            throw new NullPointerException("gson is null");
        }
        this.gson=gson;
    }

    public static  RockGsonConverterFactory create(){
        return create(new Gson());
    }

    public static RockGsonConverterFactory create(Gson gson){
        return new RockGsonConverterFactory(gson);
    }

    @Override
    public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations, Annotation[] methodAnnotations, Retrofit retrofit) {
        TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
        return new RockGsonRequestBodyConverter<>(gson, adapter);
    }

    @Override
    public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) {
        TypeAdapter<?> adapter=gson.getAdapter(TypeToken.get(type));
        return new RockGsonResponseBodyConverter<>(gson,adapter);
    }
}
